User manual

7 The ENDAT-7100M System Board
JP10: Pin Header for Case Panel (2.54mm)
Pin No. Function
1(-), 2(+) HDD active LED
3,6 External Speaker
4,5 Buzzer On/Off
7,8 Hardware Reset Switch
9,10 ATX Power On/Off
11(-),12(+) Power LED
13,14 Close: Enable WDT function
JP3, JP4: RS232 / 422 / 485 Selector for COM2 (2.0mm)
TYPE JP3 (2x3/2mm) JP4 (3x4/2mm)
RS-232 * 1-2 1-2, 4-5, 7-8, 10-11
RS-422 3-4 2-3, 5-6, 8-9, 11-12
RS-485 5-6 2-3, 5-6, 8-9, 11-12
JP6: COM Port Voltage Selector (2.0mm)
Voltage +12V(DC) R.I. * +5V(DC)
COM1 (JP6) 1-2 3-4 5-6
COM2 (JP6) 7-8 9-10 11-12
COM3 (JP6) 13-14 15-16 17-18
COM4 (JP6) 19-20 21-22 23-24
JBAT1: CMOS Data Clear (2.0mm)
Pin-1, 2 * Normal (Default)
Pin-2, 3 Close for clear CMOS
Part 2: Onboard connectors
JP2: IR Pin Header Connector (2.54mm)
Pin No. Function Pin No. Function
1 VCC 4 GND
2 n/c 5 IRTX
3 IRRX